#coding=utf-8

'''
tuple:
1、统计查找
2、序列
 |  count(...)
 |      T.count(value) -> integer -- return number of occurrences of value
 |  index(...)
 |      T.index(value, [start, [stop]]) -> integer -- return first index of value.
 |      Raises ValueError if the value is not present.
'''


'''
set

'''